Plumbing – Does a compression valve come with the tub insert and compression sleeve or they have to be acquired separately

plumbing

I would like to buy this (or any other 3/8 compression valve, not to make this specific for this product)
https://www.lowes.ca/product/38-in-dia-chrome-compression-quarter-turn-straight-valve-586694
Does it come with a compression sleeve and with the tube insert shown in the images below. Also does it work with both copper and the below 3/8" pressure rated tube?
enter image description here

Best Answer

A worker at the tool store can tell you for sure, but generally compression fittings include everything you need to complete the connection, assuming you choose the correct fitting. The tube insert appears to be a brass tube sticking out of the compression nut in the picture. Your diagram shows the parts separately because it is a guide designed to aid in a minimal repair.